docs: unify README, setup guide, and description

[Firestone82]

Standardizes the README format and updates the repository description for consistency across all public repositories.

Changes:

• Unified section structure: About, Features, Requirements, Setup, Configuration (where applicable), License
• School projects clearly marked with VŠB-TUO attribution and course name/code
• Personal projects updated with accurate descriptions and real config examples
• Repository description updated

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8a89281bc8

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Correct the advertised run command

Users who follow this command will not run the requested program: the Maven build is configured with artifactId ProjectANTLR, so this glob does not match the produced jar name, and Main.main ignores args while always constructing Path.of("Project/PLC_test.in.txt"), which Program then resolves under src/main/antlr4. Either document the actual invocation/default sample or update the CLI before advertising path/to/program.lang.

Useful? React with 👍 / 👎.